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组合机床设计(多轴箱设计)外文翻译_托辊管体止口镗削组合机床多轴箱设计(毕业设计包含外文翻译等)(3)

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ransfer and unit machine is automatic, precise,

and consistent motion control.

Rather than applying pley mechanical devices to cause motion as is required on most conventional machine tools, transfer and unit machines allow motion control in a revolutionary manner2.

All forms of transfer and unit machine equipment have two or more directions of motion, called axes.

These axes can be precisely and automatically positioned along their lengths of travel.

The two most mon axis types are linear (driven along a straight path) and rotary (driven along a circular path).

Instead of causing motion by turning cranks and handwheels as is required on conventional machine tools, transfer and unit machines allow motions to be manded through programmed mands.

Generally speaking, the motion type (rapid, linear, and circular), the axes to move, the amount of motion and the motion rate (feedrate) are programmable with almost all transfer and unit machine tools.

A transfer and unit machine mand executed within the control ls the drive motor to rotate a precise number of times.

The rotation of the drive motor in turn rotates the ball screw.

And the ball screw drives the linear axis (slide).

A feedback

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